 public class PP16
 {
    public static void main(String[] args)
       {System.out.println("    *\n   ***\n  *****\n *******\n   ***\n  *****\n *******\n*********\n  *****\n *******\n*********\n    *\n    *\n    *\n    *\n    *\n    *");
       }
 }

